205311470364543 has 8 divisors (see below), whose sum is σ = 273788468342656. Its totient is φ = 136854392981400.

The previous prime is 205311470364523. The next prime is 205311470364547. The reversal of 205311470364543 is 345463074113502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 205311470364543 - 2⁹ = 205311470364031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 205311470364492 and 205311470364501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205311470364547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4980124693 + ... + 4980165918.

It is an arithmetic number, because the mean of its divisors is an integer number (34223558542832).

Almost surely, 2^{205311470364543} is an apocalyptic number.

205311470364543 is a deficient number, since it is larger than the sum of its proper divisors (68476997978113).

205311470364543 is an equidigital number, since it uses as much as digits as its factorization.

205311470364543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9960297485.

The product of its (nonzero) digits is 3628800, while the sum is 48.

The spelling of 205311470364543 in words is "two hundred five trillion, three hundred eleven billion, four hundred seventy million, three hundred sixty-four thousand, five hundred forty-three".